20210108 has 6 divisors (see below), whose sum is σ = 35367696. Its totient is φ = 10105052.

The previous prime is 20210107. The next prime is 20210131. The reversal of 20210108 is 80101202.

It is a junction number, because it is equal to n+sod(n) for n = 20210092 and 20210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526260 + ... + 2526267.

It is an arithmetic number, because the mean of its divisors is an integer number (5894616).

Almost surely, 2^20210108 is an apocalyptic number.

It is an amenable number.

20210108 is a deficient number, since it is larger than the sum of its proper divisors (15157588).

20210108 is a wasteful number, since it uses less digits than its factorization.

20210108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052531 (or 5052529 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 20210108 is about 4495.5653704512. The cubic root of 20210108 is about 272.3889871295.

The spelling of 20210108 in words is "twenty million, two hundred ten thousand, one hundred eight".